{"product_id":"caribsea-purple-up","title":"CaribSea Purple-Up","description":"\u003cp\u003e\u003cstrong\u003eFeeds the coralline algae you already have, twice over.\u003c\/strong\u003e CaribSea Purple-Up is a marine supplement for accelerating coralline algae growth on live rock, glass and overflows. It works two ways at once: ionic calcium raises dissolved calcium in the water column, and a suspension of 10 micron aragonite powder settles onto rock surfaces and delivers calcium, strontium, magnesium and carbonate directly where the coralline is growing. Iodine is included to replace what a closed system strips out. It is supplied in a 237 mL (8 oz) or 473 mL (16 oz) bottle and is a marine and reef product only.\u003c\/p\u003e\n\n\u003ch3\u003eWhat it does, and what it does not do\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIt does:\u003c\/strong\u003e lift dissolved calcium, deliver carbonate and trace elements straight onto rock surfaces, replace iodine consumed in a closed system, and encourage existing coralline to spread and colour up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIt does not:\u003c\/strong\u003e contain coralline algae. CaribSea is explicit on this point - some living coralline must already be present on your rock or glass for Purple-Up to accelerate anything. It also will not overcome a phosphate problem, because elevated phosphate inhibits coralline growth regardless of how much calcium is available. And it is not a replacement for a full two-part or calcium reactor regime on a heavily stocked SPS system.\u003c\/p\u003e\n\n\u003ch3\u003eActive constituents\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eIonic calcium\u003c\/th\u003e\n\u003ctd\u003eRaises dissolved calcium in the water column\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAragonite powder, 10 micron\u003c\/th\u003e\n\u003ctd\u003eSettles on rock and glass, supplying calcium, strontium, magnesium and carbonate at the surface where coralline grows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIodine\u003c\/th\u003e\n\u003ctd\u003eReplaces iodine depleted by skimming, carbon and biological uptake in closed systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePatent\u003c\/th\u003e\n\u003ctd\u003eUS Patent No. 7,565,883\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eCaribSea publishes the active constituents above but does not publish a full quantitative ingredient declaration for Purple-Up, so none is reproduced here.\u003c\/p\u003e\n\n\u003ch3\u003eDosage and directions\u003c\/h3\u003e\n\u003cp\u003eCaribSea's dose rate is \u003cstrong\u003e1 capful (5 mL) per 50 US gallons, no more than once daily\u003c\/strong\u003e. Fifty US gallons is 189 litres, so in metric that is roughly 2.6 mL per 100 litres of system volume per day.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem volume\u003c\/th\u003e\n\u003cth\u003eDaily dose\u003c\/th\u003e\n\u003cth\u003e237 mL bottle lasts\u003c\/th\u003e\n\u003cth\u003e473 mL bottle lasts\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 L\u003c\/td\u003e\n\u003ctd\u003e2.6 mL\u003c\/td\u003e\n\u003ctd\u003eAbout 90 days\u003c\/td\u003e\n\u003ctd\u003eAbout 180 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 L\u003c\/td\u003e\n\u003ctd\u003e5.3 mL\u003c\/td\u003e\n\u003ctd\u003eAbout 45 days\u003c\/td\u003e\n\u003ctd\u003eAbout 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003e7.9 mL\u003c\/td\u003e\n\u003ctd\u003eAbout 30 days\u003c\/td\u003e\n\u003ctd\u003eAbout 60 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 L\u003c\/td\u003e\n\u003ctd\u003e13.2 mL\u003c\/td\u003e\n\u003ctd\u003eAbout 18 days\u003c\/td\u003e\n\u003ctd\u003eAbout 36 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch4\u003eHow to dose it\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eShake the bottle. The aragonite fraction is a suspension and settles out between uses.\u003c\/li\u003e\n\u003cli\u003eAdd the dose to a high-flow area - the sump return chamber or in front of a powerhead - so the powder distributes rather than dropping in one spot.\u003c\/li\u003e\n\u003cli\u003eExpect temporary cloudiness. That is the aragonite in suspension and it clears as the powder settles onto surfaces.\u003c\/li\u003e\n\u003cli\u003eWait at least one hour after dosing before testing calcium. Testing sooner reads the undissolved powder as dissolved calcium and gives a falsely high result.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eKeep calcium in range\u003c\/h4\u003e\n\u003cp\u003eMaintain calcium between 380 and 420 ppm. CaribSea warns against exceeding 420 ppm on a regular basis, because at that point significant precipitation occurs - calcium and carbonate drop out of solution together, which wastes both and can cloud the tank or coat heaters and pumps. Test before you increase a dose, not after.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMarine calcium and trace element supplement for coralline algae\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDose rate\u003c\/th\u003e\n\u003ctd\u003e5 mL per 189 L (50 US gal), maximum once daily\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDoses per bottle\u003c\/th\u003e\n\u003ctd\u003e47 (237 mL) or 94 (473 mL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget calcium\u003c\/th\u003e\n\u003ctd\u003e380 to 420 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eMarine and reef only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContains live coralline\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch4\u003eBy bottle size\u003c\/h4\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003eDoses\u003c\/th\u003e\n\u003cth\u003eSupplier code\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 oz\u003c\/td\u003e\n\u003ctd\u003e237 mL\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003ctd\u003eCS8530\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16 oz\u003c\/td\u003e\n\u003ctd\u003e473 mL\u003c\/td\u003e\n\u003ctd\u003e94\u003c\/td\u003e\n\u003ctd\u003eCS5304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e marine fish-only, FOWLR and reef aquariums that already carry some coralline algae; newly cycled tanks seeded with a piece of coralline-covered rock; systems where you want purple on the back glass and overflow rather than green film algae.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e freshwater or planted aquariums of any kind; tanks with no coralline present at all, because there is nothing to accelerate; and systems already running a calcium reactor or a balanced two-part regime at target calcium, where adding more calcium risks pushing past 420 ppm.\u003c\/p\u003e\n\n\u003ch3\u003eSafety and handling\u003c\/h3\u003e\n\u003cp\u003eKeep out of reach of children. Do not dose to a tank without testing calcium first. If the system is already at or above 420 ppm calcium, correct that before starting Purple-Up rather than dosing on top of it.\u003c\/p\u003e\n\u003cp\u003eStore the bottle closed, upright and out of direct sun. Shake before every use.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eCoralline is slow. CaribSea's own guidance is that noticeably faster growth takes several months rather than weeks, so judge the product on a season, not a fortnight. Keep phosphate low, keep calcium and alkalinity stable, and give the tank moderate light - coralline is often outcompeted rather than starved.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/arag-alive-fiji-pink\"\u003eCaribSea Arag-Alive Fiji Pink\u003c\/a\u003e - live aragonite sand for the same tank, from the same aragonite chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/south-seas-base-rock-40lb-18kg\"\u003eCaribSea South Seas Base Rock\u003c\/a\u003e - bare rock is what Purple-Up is designed to colour in.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/life-rock-shapes-20lb-9kg\"\u003eCaribSea Life Rock Shapes\u003c\/a\u003e - aquascaping rock that takes coralline well once the tank is stable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCaribSea does not publish a warranty term for its supplements, which is normal for a consumable liquid. Your rights under the Australian Consumer Law apply regardless and are not limited by that.\u003c\/p\u003e\n\u003cp\u003eBoth bottle sizes ship as standard freight. Check the use-by or batch date on arrival and store the bottle closed.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eHow much CaribSea Purple-Up do I dose?\u003c\/h4\u003e\n\u003cp\u003eOne capful, 5 mL, per 189 litres of system volume, no more than once a day. For a 300 litre tank that is about 7.9 mL daily, and a 473 mL bottle will last roughly two months at that rate.\u003c\/p\u003e\n\u003ch4\u003eWill Purple-Up put coralline algae in my tank?\u003c\/h4\u003e\n\u003cp\u003eNo. Purple-Up contains no coralline algae. CaribSea states that living coralline must already be present on the rock or glass for the product to accelerate it. A single coralline-covered rock from an established system is the usual way to introduce it.\u003c\/p\u003e\n\u003ch4\u003eWhy did my calcium test read very high after dosing?\u003c\/h4\u003e\n\u003cp\u003eBecause you tested too soon. The aragonite powder is still in suspension for a while after dosing and a calcium test will read it as dissolved calcium. CaribSea says to wait at least one hour before testing.\u003c\/p\u003e\n\u003ch4\u003eIs the cloudiness after dosing a problem?\u003c\/h4\u003e\n\u003cp\u003eNo. That is the 10 micron aragonite suspension doing its job, and it clears as the powder settles onto rock and glass. Dosing into a high-flow area shortens how long it hangs about.\u003c\/p\u003e\n\u003ch4\u003eCan I use Purple-Up in a freshwater tank?\u003c\/h4\u003e\n\u003cp\u003eNo. It is a marine supplement. Coralline algae is a marine organism, and the calcium and carbonate load would push a freshwater tank's pH and hardness in the wrong direction.\u003c\/p\u003e\n\u003ch4\u003eHow long before I see results?\u003c\/h4\u003e\n\u003cp\u003eMonths rather than weeks. CaribSea's own guidance is that rapid coralline growth typically takes several months to establish. If phosphate is elevated, coralline will stay slow no matter how much Purple-Up is dosed.\u003c\/p\u003e\n","brand":"CaribSea","offers":[{"title":"8oz (237ml)","offer_id":55293348282659,"sku":"CS8530","price":32.95,"currency_code":"AUD","in_stock":false},{"title":"16oz (473ml)","offer_id":55335325335843,"sku":"CS5304","price":60.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/caribsea-purple-up-10281464725795-1-dq.webp?v=1790372665","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/caribsea-purple-up","provider":"Nicks AOT","version":"1.0","type":"link"}